Delete all use of tick_util.h.

webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_MAC_FULL_SCREEN_CHROME_WINDOW_DETECTOR_H_
 #define WEBRTC_MODULES_DESKTOP_CAPTURE_MAC_FULL_SCREEN_CHROME_WINDOW_DETECTOR_H_
 
 #include <ApplicationServices/ApplicationServices.h>
 
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/modules/desktop_capture/window_capturer.h"
 #include "webrtc/system_wrappers/include/atomic32.h"
-#include "webrtc/system_wrappers/include/tick_util.h"
 
 namespace webrtc {
 
 // This is a work around for the Chrome tab full-screen behavior: Chrome
 // creates a new window in full-screen mode to show a tab full-screen and
 // minimizes the old window. To continue capturing in this case, we try to
 // find the new full-screen window using these criteria:
 // 0. The original shared window is minimized.
 // 1. The original shared window's owner application name is "Google Chrome".
 // 2. The original window and the new window have the same title and owner
@@ skipping 23 matching lines @@
   ~FullScreenChromeWindowDetector();
 
   Atomic32 ref_count_;
 
   // We cache the last two results of the window list, so
   // |previous_window_list_| is taken at least 500ms before the next Capture()
   // call. If we only save the last result, we may get false positive (i.e.
   // full-screen window exists in the list) if Capture() is called too soon.
   WindowCapturer::WindowList current_window_list_;
   WindowCapturer::WindowList previous_window_list_;
-  TickTime last_udpate_time_;
+  int64_t last_update_time_ns_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(FullScreenChromeWindowDetector);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_DESKTOP_CAPTURE_MAC_FULL_SCREEN_CHROME_WINDOW_DETECTOR_H_